Pollution Potential of General Dentistry Offices in Terms of Wastewater and Solid Waste: A Case Study in the City of Arak, Iran

Ali Koolivand, Mohammad Sadegh Rajaee, Mohammad Javad ghanadzadeh, Reza Saeedi, Fattolah Gholami Borojeni

Abstract


Dental wastewater and solid waste are one of the most important sources of environmental pollution. The objective of the present study was to evaluate the quality of wastewater and solid waste produced in the general dentistry offices in the city of Arak, Iran. A total number of 30 samples of wastewater and 30 samples of solid waste were taken from 30 general dentistry offices. The samples of wastewater were analyzed for metals and other parameters such as BOD, COD, and TSS. The samples of solid wastes were manually separated into 66 components and 4 categories and then weighted. The mean concentrations of Zn, Cu, Hg, Fe, B, Ba, Sn, Ag, Pb, Al, Mn, Cr, and Co were 3950.09, 2578.59, 1247.28, 1060.21, 538.36, 493.21, 300.91, 156.56, 108.32, 107.37, 91.11, 66.00, and 6.48µg L-1, respectively. The mean generation of dental solid waste in each general dentistry office was 670.22g day-1. Potential infectious waste, domestic-type waste, chemical & pharmaceutical waste, and toxic waste constituted 51.52%, 35.30%, 11.11% and 2.07%, of the total waste generated, respectively. Due to the high levels of some metals in the samples, the wastewater should be treated before discharging into the public sewer.

Keywords


Dental Wastewater; Dental Solid Waste; Potential Infectious Waste; Toxic Waste; Arak

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References


Abhishek K, Suryavanshi HN, Sam G, Chaithanya K, Punde P, Singh SS. Management of biomedical waste: An exploratory study. JIOH. 2015;7(9): 70-74.

Singh BP, Khan SA, Agrawal N, Siddharth R, Kumar L. Current biomedical waste management practices and cross‐infection control procedures of dentists in India. Int Dent J. 2012;62(3): 111-16.

Vieira CD, de Carvalho MAR, de Menezes Cussiol NA, Alvarez-Leite ME, dos Santos SG, da Fonseca Gomes RM, et al. Count, identification and antimicrobial susceptibility of bacteria recovered from dental solid waste in Brazil. Waste Manage. 2011;31(6): 1327-32.

Koolivand A, Mahvi AH, Alipoor V, Azizi K, Binavapour M. Investigating composition and production rate of healthcare waste and associated management practices in Bandar Abbass, Iran. Waste Manage Res. 2012;30(6): 601-06.

Mandalidis A, Topalidis A, Voudrias EA, Iosifidis N. Composition, production rate and characterization of Greek dental solid waste. Waste Manage. 2018;75: 124-30.

Vieira CD, de Carvalho MAR, de Menezes Cussiol NA, Alvarez-Leite ME, dos Santos SG, da Fonseca Gomes RM, et al. Composition analysis of dental solid waste in Brazil. Waste Manage. 2009;29(4): 1388-91.

Al-Momani TD, Al-Zube LA, Al-Bataineh OM. Assessment of medical wastes management protocols in Jordanian healthcare institutions. Int J Environt Waste Manage. 2013;11(3): 323-34.

Daou MH, Karam R, Khalil S, Mawla D. Current status of dental waste management in Lebanon. Environ Nanotechnol Monitor Manage. 2015;4: 1-5.

Damani N, Koolivand A, Sadat M, Mahvi AH, Mazloomi S. Hospital waste generation and management in some provinces of Iran. Toxicol Environ Chem. 2013;95(6): 962-69.

Maamari O, Moujaes F, Keyrouz R, El-Obeid D, Kosremelli Asmar M, Brandam C, et al. The creation and monitoring of a network for solid healthcare waste management. Int J Environ Waste Managet. 2015;15(2): 130-47.

Makkar M, Kaur KA. Management of wastes in dental offices-a review. J Adv Med Dent Sci Res. 2015;3(3): 65-68.

Krishnappa P, Sreekantaiah P, Hiremath S, Thapsey H, Shivraj N, Murthy NS. Quantification of dental health care waste generated among private dental practices in Bengaluru city. JIOH. 2015;7(6):84-87.

Dalla Costa R, Cossich ES, Tavares CRG. Influence of the temperature, volume and type of solution in the mercury vaporization of dental amalgam residue. Sci Total Environ. 2008;407(1): 1-6.

Al-Khatib IA, Darwish R. Assessment of waste amalgam management in dental clinics in Ramallah and al-Bireh cities in Palestine. Int J Environl Health Res. 2004;14(3): 179-83.

Somerset V, Van der Horst C, Silwana B, Walters C, Iwuoha E. Biomonitoring and evaluation of metal concentrations in sediment and crab samples from the North-West province of South Africa. Water Air Soil Pollut. 2015;226(3): 1-25.

Barbieri FL, Gardon J, Ruiz-Castell M, Paco V P, Muckelbauer R, Casiot C, et al. Toxic trace elements in maternal and cord blood and social determinants in a Bolivian mining city. Int J Environl Health Res. 2016; 26(2): 158-74.

Keramati P, Hoodaji M, Tahmourespour A. Multi-metal resistance study of bacteria highly resistant to mercury isolated from dental clinic effluent. Afr J Microbiol Res. 2011;5: 831-7.

Shraim A, Alsuhaimi A, Al-Thakafy JT. Dental clinics: a point pollution source, not only of mercury but also of other amalgam constituents. Chemosphere. 2011;84(8): 1133-39.

Fard GH, Mehrnia MR. Investigation of mercury removal by micro-algae dynamic membrane bioreactor from simulated dental waste water. J Environ Chem Eng. 2017;5(1): 366-72.

Carraro E, Bonetta S, Bertino C, Lorenzi E, Bonetta S, Gilli G. Hospital effluents management: Chemical, physical, microbiological risks and legislation in different countries. J Environ Manage. 2016;168: 185-99.

Chung D, Choi HH, Yoo HY, Lee JY, Shin SK, Park JM, et al. Mercury flows in a zinc smelting facility in South Korea. J Mate Cycles Waste Manage. 2015;19: 46-54.

Hara K, Kuroda M, Yabar H, Kimura M, Uwasu M. Historical development of wastewater and sewage sludge treatment technologies in Japan: An analysis of patent data from the past 50 years. Environ Develop. 2016; 19: 59-69.

Brahmankar U. Hazardous waste from dental radiology. Int J Med Public Health. 2015;5(1): 123-24.

APHA. Standard methods for the examination of water and wastewater. American Public Health Association (APHA): Washington, DC, USA. 2005.

Koolivand A, Gholami-Borujeni F, Nourmoradi H. Investigation on the characteristics and management of dental waste in Urmia, Iran. J Mater Cycles Waste Manage. 2014;17: 553-59.

Kizlary E, Iosifidis N, Voudrias E, Panagiotakopoulos D. Composition and production rate of dental solid waste in Xanthi, Greece: variability among dentist groups. Waste Manage. 2005;25(6): 582-91.

Nabizadeh R, Koolivand A, Jafari AJ, Yunesian M, Omrani G. Composition and production rate of dental solid waste and associated management practices in Hamadan, Iran. Waste Manage Res. 2011;30: 619-24.

Sudhakar V, Chandrashekar J. Dental health care waste disposal among private dental practices in Bangalore City, India. Int Dent J. 2008;58(1):51-54.

Al-Kawas S, Abu-Yousef I, Kanan S, El-Kishawi M, Siddique A, Abdo N, et al. Analysis of mercury in wastewater of some dental clinics in United Arab Emirates. J Int Environ Applic Sci. 2008;3(1): 21-28.

Nicolae A, Ames H, Quiñonez C. Dental amalgam and urinary mercury concentrations: a descriptive study. BMC Oral Health. 2013;13(1): 44-66.

Muhamedagic B, Muhamedagic L, Masic I. Dental office waste: Public health and ecological risk. Materia Socio-Medica. 2009;21(1): 35-38.

Lan R, Tzortzis S, Desfosses Y, Signoli M, Tardivo D. Study of remains and dental wastes of a First World War German rest camp. Trop Dent J. 2014;37(148): 13-24.

Takaoka M. Mercury and mercury-containing waste management in Japan. J Mater Cycles Waste Manage. 2015;17(4): 665-72.

Sahu R, Saxena P, Johnson S, Mathur H, Agarwal H. Mercury pollution in the Sonbhadra district of Uttar Pradesh, India, and its health impacts. Toxicol Environ Chem. 2014;96(8): 1272-83.

Sundseth K, Pacyna JM, Pacyna EG, Panasiuk D. Substance flow analysis of mercury affecting water quality in the European Union. Water Air Soil Pollut. 2012;223(1): 429-42.

Narayan KJ, Srinivas P, Suresh S, Kamalsha S, Rao MS. Oral health care waste disposal methods and practices among private dentists in a coastal city of Andhra Pradesh, India. Editorial Board. 2015;4(5): 46.

Dwivedy M, Mittal R. Willingness of residents to participate in e-waste recycling in India. Environ Develop. 2013;6: 48-68.

Mahmoudi N, Sepandi M, Mohammadi A, Masoumbeigi H. Epidemiological aspects of needle stick injuries among nurses in a military hospital. IJHSE. 2015;2(4): 374-79.

Bangennavar BF, Gupta A, Khullar S, Sukla N, Das A, Atram P. Biomedical waste disposal: practice, knowledge, and awareness among dentists in india. JIOH. 2015;7(11): 53-56.

Mohmoudi N, Sepandi M, Jafari NJ, Masoumbeigi H. Knowledge and practice of nursing staff about sharp waste management in selected hospitals of military (Tehran) and non-military (Qom) in 2012. IJHSE. 2017;4(1): 689-94.




Iranian Journal of Health, Safety and Environment e-ISSN: :2345-5535 Iran university of Medical sciences, Tehran, Iran